OK.......maybe I can get these TWO identical1983-ish Schwinn World Tourists figured out.....and you're NOT seeing double.
#1 is s/n SA003919 with headstock badge #0150.
Second one is s/n GD806531 with headstock badge #1048
Now the first obvious difference is the "SCHWINN" and "World Tourist" decals.
The second thing is that Shimano didn't release the model "EM" thumb shifters that are on BOTH these bikes until the 1983 model year as per Shimano documentation. The earlier models were equipped with stem shifters.I have no reason to believe that these "EM" shifters were added onto these bikes later.
The third thing is that no Schwinn catalog I've been able to find shows the World Tourist 10 speeds from 1980 thru 1986 EVER being available in this 2 tone paint scheme of "Warm Silver" with "Charcoal" fenders,
The fourth thing is the pedals which are obviously different.....but both sets of pedals seem to be original as is everything else on these bikes except the seat on the 1st bike.
Fifth thing is please ignore the metal "dork disk" on the 2nd bike. I put this on because the original plastic one (same as shown on the bike in Pic #1) was in poor condition.
Now, if someone can shed some light on the big difference in the serial numbers (different manufacturers?) and badge numbers to help me solve this really perplexing mystery, I'd be eternally grateful.