Found these in my basement, never used. The specs are;

4.8 volts…. .21 sec. 143 oz. in.
6.0 volts…. .17 sec. 151 oz. In.

Tactic…… TSX45

I don’t really know what they are worth but $20.00 a piece sounds reasonable.
The best way to contact me is;
dmenchions @gmail.com