Model Forum / General / Models / February 2004

The picture you cited will not open but there were three different service
turrets for M10s. All needed counterweights to permit easy traverse.

The first model had large rectangular weights on the back of the
forward-slanting upper sections in the rear. This was necessary but rather
crude.

The second (and most common) used wedge shaped cast weights with a more
streamlined appearance that appeared to be level with the top of the turret and
extend it to the rear.

The third one used a redesigned turret rear where the upper rear sections now
slanted to the rear, and had an odd "duckbill" shape to the thinner and longer
cast weights.

This sounds like the turret you described.

Cookie Sewell