Retro/Vintage 1950's -1960's Simplex School/Industrial clocks. One Double-sided and three Singles. Double sided clocks in original case with wall mounting attachment. The three singles can be easily mounted in a wood or other frame. All five complete with original electric mechanisms that all require servicing. Easily converted to quartz movement. All glass crystals perfect, no chips or cracks. Paid $200 usd. $75.00 obo.