Most models when a new "dash" number was introduced it was due to an engineering change being made and the new dash number replaced the previous dash number and the previous dash number stopped being produced
(-1 replaced -2, and production of -1 ceased).
This is one of the rare exceptions (maybe the only one?).
36 no-dash and 36-1 were both being produced at the same time.
The 36-1 was the 3" Heavy Barrel variant.
To make it just a little more confusing there were also 36 no-dash versions being produced with a 3" barrel - but it was a slimmer, tapered barrel - not the Heavy Barrel (non-tapered, "bull" barrel).
So at one time (as I understand it) the factory was producing
36 no-dash in both round and square butt 2" barrel blued finish
36 no-dash in both round and square butt 2" barrel nickel finish
36 no-dash in both round and square butt 3" tapered barrel blued finish
36 no-dash in both round and square butt 3" tapered barrel nickel finish
36-1 in both round and square butt 3" Heavy Barrel blued finish
36-1 in both round and square butt 3" Heavy Barrel nickel finish
For a total of TWELVE different configurations.
Any less confused now? Or more confused?
