PTŠeq 46.c:27[2] :מתניתא בתקלין חדתין אבל בתקלין עתיקין לא בדא‏ : the Mishnah is concerned with new shekels but does not refer to old shekels
See the entire entry for bdy vb. to contrive, to invent

PTŠeq 46.c:27[2] :בתקלין חדתין ٠٠٠ בתקלין עתיקין‏ : new (half-)shekels, old (half-)shekels
See the entire entry for tqel, teqlā n.m. shekel