The Para Dynamics PDC-253 Frequency Counter is a high-quality unit designed for radio communication purposes. With a brand known for reliability, this frequency counter is comparable to the PDC-250 model, but with a wider frequency range of 1-50 MHz and offers a convenient on/off switch feature. Perfect for measuring and displaying frequency values in the HF/CB band, this unit is a valuable addition to any radio communication setup. With its durable construction and precise measurements, the Para Dynamics PDC-253 Frequency Counter is a must-have for professionals and hobbyists alike.

I bought this new back in the 90s, and it has been stored in a cabinet since the 90s.  One side has the thumb screw for mounting, and I lost the other, I used a black Philips screw on the other side. I do not have the mounting bracket.