Price in 1952: Unlisted If your transformer does not now have a Circuit Breaker you can provide one quickly with this accessory. Especially suitable for American Flyer No. 1 or No. 2 Transformers. Prevents transformer burn-outs and overloading.
Price in 1953: Unlisted If your transformer does not now have a Circuit Breaker you can provide one quickly with this accessory. Suitable for any transformer without a circuit breaker. Prevents transformer burn-outs and overloading.
Price in 1954: $1.75 If your transformer does not now have a Circuit Breaker you can provide one quickly with this accessory. Suitable for any transformer without a circuit breaker. Prevents transformer burn-outs and over-loading.
Price in 1955: $1.75 If your transformer does not now have a Circuit Breaker you can provide one quickly with this accessory. Prevents transformer burn-outs and overloading.