Message:

<p>[QUOTE=&quot;krispy, post: 964833, member: 19065&quot;]This is a question about the authenticity of the 1939 Mexican 20 Centavos silver coin pictured below.</p><p><br /></p><p>I have two coins: <b>i)</b> 1937 Mexico 20 Centavos, Type 4 (0.720 Silver) coin and <b>ii)</b> a 1939 Mexico 20 Centavos, Type 4 (0.720 Silver) coin. The 1937 I estimate to be at a general grade of &#039;Good&#039; by my reckoning and the 1939 coin, well it might be a very weakly struck BU with a die crack and some die deterioration, <i><u>IF</u></i> it is authentic... </p><p><br /></p><p>I am using the 1937 coin against the 1939 coin as my point of comparison as I only own these two coins to do this comparison in hand. I will also preface this with, I do not know Mexican coins well enough to spot the problems regarding authenticity, but here&#039;s what I see: </p><p><br /></p><p>The 1939 coin is weak, struck from a worn die as evidenced by the die crack on the obverse, running horizontally across the sun rays at the top center and just above the liberty cap. The reverse has a &#039;funny&#039; rub/wear pattern that appears darker across the eagle&#039;s higher points but under scrutiny with the naked eye the mound the eagle and snake are perched on seems very weak for a BU coin. All of the devices look okay with one exception that I will note at the end. There appears to be some luster but not a lot of cartwheel effect and I am uncertain but accept that this coin may well have been dipped (cleaned) as there is the slightest &#039;look&#039; of a halo around the devices to that of the fields, particularly on the obverse, as seen by the naked eye. Now under examination with a loupe and small microscope (30x power) my biggest question is in regards to the reverse denticles running around the rim on the reverse. They look plain shoddy and I hope my images below are clear to show you to see what I see. The devices around the edge look like a crappy cast that failed, like the shapes themselves collapsed… OR is this typical of an overall very weakly struck coin from a mint that went through years and years of quality issues, changing compositions and simply lacked the equipment to produce something better?</p><p><br /></p><p>Is the 1939 authentic or not? If it is authentic, would you give it a BU or AU, cleaned or not??? </p><p><b><br /></b></p><p><b>Weights:</b></p><p>• 1937 20 centavo = 3.36 grams (total weight in a US half dollar 2x2 + 3 staples)</p><p>• 1939 20 centavo = 4.24 grams (total weight in a US quarter dollar 2x2 + 4 staples)</p><p><br /></p><p><br /></p><p>I greatly appreciate your comments and assistance.&nbsp; :smile</p><p><br /></p><p><br /></p><p><b>1937 Mexico 20 Centavos used here for comparison to the 1939 below:</b></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/Mx_1937_20c_R_sp_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/Mx_1937_20c_O_sp_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p><br /></p><p><b>1937 Close-up images of the denticles around inner rim:</b></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/Mx_1937_20c_Mx_720ag_closeup_R_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/Mx_1937_20c_720ag_closeup_R_002.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><b>1939 Mexico 20 Centavos -- The questionable coin. Please note reverse rim/denticles:</b></p><p><b><br /></b></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_O_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_R_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><br /></p><p><b>1939 Close-up images of denticles around inner rim, reverse:</b></p><p><b><br /></b></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_R_007.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_R_006.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_R_005.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_R_004.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><b><br /></b></p><p><b><br /></b></p><p><b>Close-up images of die-crack across sun rays above liberty cap, reverse:</b></p><p><b><br /></b></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_die_crack_O_003.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p><img src="http://i776.photobucket.com/albums/yy46/kcttck/World%20Coins%20-%20Mexico/1939_20c_Mx_720ag_die_crack_O_001.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in