Yeah that's a long shot but it doesn't matter if you have the screw in antenna. It was a wonderful radio made by GRE Japan.
Antennas are matched to frequencies and bands that you want to monitor not makes and models of radios. I owned this radio and it's big brothers the pro 2004, 5 and 6.
It has a mot pin antenna connection which most scanners had before the BNC connection so you simply need a pl259 to a mot pin adapter or a BNC to mot pin adapter. You can choose whatever VHF low, high antenna you want. It doesn't matter what the brand of radio is, it depends on what you want to monitor.
As wonderful as I think this radio is it is not worth very much, Nostalgia does not equal value. Depending on how much storage space you have you have to make a decision whether you want the few dollars it's worth, and I mean... A few dollars or you want to keep it and maybe someday have a museum like I do LOL in my garage.
Mounts to the rear jack on many common scanner receivers, OR the top whip may be unscrewed and used on many Realistic scanner receivers (See list below for compatible scanners). Regency ACT-10R, ACT-C4U, ACT-E10, ACT-E106, ACT-R1, ACT-R92AP, ACT-R106, ACT-T16K, ACT-T720A, ACT-D100, ACT-D300...