This 20 gauge BT;SST;26 IC/F; 14 3/4 lop to butt plate is a standard grade ordered in 1936. On the dealer handwritten receipt there is a charge for $8.90 for a trigger extension. According to the Cody letter the gun had it's final inspection 10/21/36 and left the factory with a 14 3/4 LOP. Drop at heel and comb and pitch was listed as regular. The dealer receipt is dated 10/28/36. The gun is currently in 95-96% original condition with a 14 3/4 lop. This trigger extension is a machined metal web connecting a front trigger to the rear functioning trigger. All the front trigger does is add 3/4 of an inch to the functioning trigger. In my mind the factory had to do this for the customer.