Black Rat Models are/were produced by Bruce Rolston in the United Kingdom, they were limited and in the higher end of the market.

Blackrat models are verry small series of handbuilt (full metal!) models. The models are real nice and well build. When the first blackrat models were made they (together with brass ccm and rr models) were the best scraper models on the marked. I my opinion they still are the best scrapers ever made. The blackrat and BRASS ccm scrapers are top of the marked. The Resin rr scrapers are real nice and well build to. When CCM started to make their Diecast series of the scrapers the marked for scrapers came a bit flooded with scraper models. So for many collectors the cheaper ccm die cast line became the choice to buy. That sad the blackrat models are way more high end then the CCM models. In the latest ccm models is the plastic content high but then they are also cheaper then the Blackrat ones. That said I like my blackrat scrapers and find way them better than my CCM diecast ones. I can buy some for decent prices I still buy the ones I miss from blackrat. Pricing of them is a bit difficult because thing as availability and personal feelings are factors that can influence the price. In general the price of the blackrat models are down a bit since CCM flooded the marked. For me as a scraper enthusiast there can never be to much scraper models….

I was curious about this as well. Zinc or tin/bismuth white metal?

Also, were BR models licensed by Cat? Shame they don't make models anymore, I thought their scrapers and dozers were very nice.