Indian Four production numbers?

[gsottl]

Indian Four DA785 was 3-main bearing, double downtube as well....at least in the last couple of decades, not sure if it originally had a single downtube frame.

[L Burke]

Probably pretty accurate, late production 3 main double down tube would signify Feb March 1929 before introduction of the z5 main engine in early spring. Still clincher rims until late summer early July.