I'll confidently say that you are correct, that is a 1971 Doubled Penny. It seems to match up to PCGS's photos. The L is clearly not one L with pressed sides, machine doubling, it is two separate L's. Nice find! http://www.pcgscoinfacts.com/Coin/Detail/92941
WOW....nice find, these are tough! Looks to be AU, valuable coin! I traded several nice MS Morgans for mine. CONGRATS!
Here's mine, got in a trade with Bob Piazza himself: PCGS slabbed shows about $275 for 63RB. I wouldn't sell mine for less than $200. They are pretty scarce.