These Simplex derailleurs are from c1961 and the rear derailleur was the first they made which had a parallelogram. The rear sounds like a 61 Export and the front is probably the all metal version of the LJ23 which was introduced around 1957.
Hilary Stone, Bristol, England
Rick Bakke wrote:
> I was in Sellwood Cyclery the other morning (being
> allowed to rumage, what a treat...thanks Eric)and found an old Siplex der
> set. These are metal with the riveted on name badge, I think there are L Juy
> 61? They appear the same as an old crit but are solid metal. Included were
> the shift levers. I have a couple of questions. ABout what year were these
> der's? Next, the name plate is missing from the front der. While I am sure I
> could make the badge itself, any good ideas on how to get the logo on back
> on the metal? I a little heavy handed when it comes to art and this may be
> beyond my ability to make a template and paint.