I don't know much about milk tokens, but I haven't had any luck finding this one in any references or even posted on any token boards or sold in the last 18 months. Meadolake seems to be a dairy that was active in the 1940's (I spotted a 1942 war bond bottle that was listed on eBay 6 months ago). One guess is that it was in CA, but I think that might have been confusion with a similarly named place - Meadow Lake Dairy. The token is quarter sized, and octagonal. The obverse reads "MEADOLAKE" incuse around "Good For / 1 / Quart / Milk" - the latter all enclosed in a circle. There's a leafy pattern at 6:00. The reverse has a border pattern similar to the obverse, but is blank.
This reference book, Thomas Grocery Register 1988, is probably in your library: "1 page (866) matching anderson clayton foods meadolake milk" Image would not reproduce. Page 866 Anderson Clayton was a huge Texas food and dairy conglomerate founded as a cotton brokerage in 1904, broken up and sold to various firms (Unilever, Quaker Oats, etc.) in the 1950s and 1960s. Parts still exist today, but the Meadolake (Division) brand is probably gone forever. I couldn't find out who bought the dairy manufacturing, whose primary products were cheese and margarine. Source: Google
Very cool. So, the Meadolake Division was in Texas? Any idea about the value of this token, or the time range it dates to?
No idea on age or value. The Thomas Register should tell you when that Division was founded, and since this was a growing national company, there's no guarantee that it was in Texas. The "style" of the token suggests (to me) 1920s.