hey, I was wondering if anybody here knew the history or timeline of Dia Compe Brakes and Levers (elliot?) I found this, here's what I found so far:Dia-Compe and Weinmann
"Brakes and brake levers often have date codes on them. Weinmann and Dia-Compe calipers usually have codes on the back of a caliper arm. This can be simple like "0784" (month 07, 1984) or a clock-type, with year in the middle and a ring of numbers with a tickmark pointing to the month."
"Dia-Compe road levers usually have a code stamped _inside_ the lever. Pull the lever and look inside the top of the lever arm for a code such as "1084." Dia-Compe extension levers (yuck) also tend to have date codes on the side that faces the brake hood. I have a set of Dia-Compe mountain levers where if you pull the lever all the way, a piece of the lever is exposed, which has a clock-type date code. Dia-Compe cantilever brakes don't appear to have a date code, but supposedly the 981, 983, 986 brakes were first introduced in 1981, 1983, 1986, etc."Vintage-Trek.com