1968 a833 1-2 gear stuck

Thanks all for the responses.
I cannot move finger 3-4 more than 1 click. I figure one position or the other is neutral. I tried 1-2 with the 3-4 lever in either position with no change. Reverse is definitely in neutral.
I have tried to turn the output shaft, but I do not have a drive shaft yet. With my fingertips on the output as best I can, the output shaft doesn't turn at all and feels like it is in gear.
I will try removing the side cover tomorrow, weather permitting, and report back my findings.

thanks again all...