Regarding Model 172, my first thought based upon the number is 1901 like the other year catalogs suggest. What made me think it might not be made in 1901 is the existence of Rambler badges with the year 1901 printed on the badge, while my badge only has the model number.
This thread shows an 01 badge with a 2 digit model number.
An acquaintance of mine has just acquired a 'Rambler' bicycle, a fairly unusual machine over here. Unfortunately pictures are not available as yet. What I know of the bicycle is that the head badge says Rambler, Model 41 at the bottom and bears the date 1901 at the top. It has what he describes...
thecabe.com
Also basing the model/year assumption on the few catalogs I have and have seen, I have thought, if not 1901, then maybe 1911. But if they stopped producing the lugs in 08, then my bike could not be a 11.
So maybe they switched from 2 digit model numbers in the middle of 01 to three digit model numbers.
Thanks,
Chris