Mack Tradesman Lace Up Safety Boot Color:Black while the reverse showed the

while the reverse showed the denomination flanked by two ears of wheat

Yellow pipping

Size: 8" H x 4 1/2" W x 2" D

I am not sure what SPS stands for

Date: 1981

Mack Tradesman Lace Up Safety Boot Color:Black while the reverse showed theMack Tradesman Lace Up Safety Boots (MKOTRADESBBF) Engineered specifically for trade professionals, the Tradesman boots offer all day comfort and support. Featuring a lace up design, these safety boots deliver enhanced ankle stability at an excellent value, perfect for apprentices and part time workers. The TPU outsole offers superior resistance to hydrolysis, microbial degradation, oils, acids, and organic fats when compared to traditional dual