This part is no longer available from Yamaha. It has been discontinued. This part is a new reproduction of the original. The originals have deteriorated with time, as they are 55+ years old. The part number is used for reference purposes only and no source of manufacture or supply is implied. These are a great replacement at a fair price. The chrome is comparable to the original. 
 
This listing is for a single Fork Reflector Holder.
 
Part # = 261-23122-60-00
Part Description = COVER,OUTER
Model Count = 4
AT1B 1970 125 AT1 Enduro Dual-Purpose 
AT1E 1969 125 AT1 Enduro Dual-Purpose 
CT1 1969 175 CT1 Dual Purpose 
CT1B 1970 175 CT1 Dual Purpose