Vtge Pocket Level Cast Iron & Steel Top Plate, Attach to Square STANLEY No. 40? For Sale

Here we have aVintage 'Unbranded' Pocket Level, Cast Iron, with Steel Top Plate,for Attachment to Square or other Straight Edge, like aSTANLEY No. 40?It is inVery good condition with repainted black finish. The spirt bubble vial works as it should. No cracks, breaks or repairs. It is approx. 3" long.** Please remember to leave response. I will gladly reciprocate. :-)