Con-Cor and Heljan Model B 681 Slaughterhouse with Cattle Pens Building Kit, Dual N/HO Scale, c. 1970s-1980s

This vintage model railway building kit is a collaborative production between the American distributor Con-Cor and the Danish manufacturer Heljan. Identified as model number B 681, the kit depicts a large industrial slaughterhouse complete with external cattle pens. A versatile offering for the hobbyist, it is designed for dual-scale application, suitable for both HO and N gauge layouts; the kit includes specialised door sets to accommodate the differing scales. The construction consists of injection-moulded plastic parts. The components are housed in the original cardboard packaging, which features a vibrant full-colour illustration of the completed structure within a scenic railway environment. The branding for both Con-Cor and Heljan is prominently displayed alongside the model number and scale instructions. Box dimensions approximately 310mm x 215mm x 45mm.