untested vintage VIBRATONE MODEL 500 A-4 FEDERAL SIGNAL CORPORATION 500 Bell

500-024-1 Federal Signal Corp Vibratone Bell 500V 120A 60HZ Series A1 New

Federal Signal 500-240-1 Vibratone Bell

Federal Signal Vibratone Bell Model 500 x 120-1

Vintage Federal Signal Vibratone Horn Model 450 Serail A-1

Federal Signal Vibratone Model A-10 + Model 500 Bell 120 Volts 0.8 Amps 47924LR

FEDERAL SIGNAL CORPORATION VIBRATONE MODEL A-4 #1019J22 EUC

FEDERAL SIGNAL UTM Selec Tone Universal Tone Module Series A