cam - 5-plank, 15 tons, Cam Rys [model]

I haven't seen an actual Cambrian Railways wagon with a steel underframe. Both model manufacturers and fundraising clubs apply liveries to basic wagons without much regard to the correct chassis. This is an example of a standard steel-framed Dapol wagon, which the Burnham and District MRC has had printed with the livery of Black Rock Quarries. www.themodelcentre.com/dblackr48pre
As yet can find no examples of Black Rock having steel framed wagons. Burnham MRC, to raise funds, has had dozens of liveries applied to standard Dapol and other manufacturers standard wagons. Some of the liveries are authentic although the wagon bodies may not be the correct ones. Some of the liveries are fictional ones of local businesses.