original c. 1950's old electric "bubble up" diner or service station illuminated wall clock. manufactured by the pam clock co., inc., new rochelle, ny. the backside is vented and louvered allowing heat generated by the two incandescent light bulbs to escape. the clock case is made of spun aluminum with chrome bezel and original convex glass. the reverse painted clock face does have wear as depicted in the photograph above. working condition. bubble up began in 1919 as a lemon-lime carbonated soft drink. originally owned by sweet valley productions of sandusky, ohio, bubble up was produced ten years prior to its well-known competitor, 7 up. subsequently the brand was owned by the bubble up company, inc. of chicago. with the tag line, a kiss of lemon, a kiss of lime, bubble up was distributed in the coca-cola bottler network prior to sprite. the monarch company of atlanta purchased bubble up in 1978. in 2007, bubble up was purchased by hedinger brands, llc and licensed to the dads root beer company, llc. the company headquarters is now located in jasper, indiana. 15 inches in diameter, 3.5 inches depth. will need rewiring.