Compatible with "O"-gauge track and costing more than $1,500 (in 2024 money), the vintage K-line by Lionel series O/O27 was released in the mid 1970's by Lionel dealer K-Line after acquiring Marx and Kusan tooling. This lot is for 4 Magma Arizona train cars, 1 Magma Arizona Diesel Locomotive and 1 North & Western Caboose as follows:

MP-15 Magma Arizona Diesel Engine Locomotive - believe it to be NEW open box, does not appear to have been removed from Styrofoam. (K-2299-003)
9901 Magma Arizona Boom Tender Freight Car - NEW sealed both ends unopened box (K671-9101)
9902 Magma Arizona Ore Freight Car - NEW sealed both ends unopened box (K671-9102)
9903 Magma Arizona Ore Freight Car - NEW sealed both ends unopened box (K671-9103)
1999 Magma Arizona Boom Tender Freight Car - NEW sealed both ends unopened box (K671-9011)
6162 Chicago North & Western Caboose - believe it to be NEW open box, in wrapper (K-6162)

Pictures part of description.