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LEGO part 92339 - Dark Bluish Gray Train Base 6 x 28 with 2 Square Cutouts and 3 Round Holes Each End at BrickScout
![LEGO Train Base 6 x 34 Split-Level with Bottom Tubes and 1 Hole on each end (2972) | Brick Owl - LEGO Marketplace LEGO Train Base 6 x 34 Split-Level with Bottom Tubes and 1 Hole on each end (2972) | Brick Owl - LEGO Marketplace](https://img.brickowl.com/files/image_cache/larger/lego-light-gray-train-base-6-x-34-split-level-with-bottom-tubes-and-1-hole-on-each-end-2972-28-89334-66.jpg)
LEGO Train Base 6 x 34 Split-Level with Bottom Tubes and 1 Hole on each end (2972) | Brick Owl - LEGO Marketplace
![Train Base 6 x 24 with White 'OIL' and 'WATER' on Left Side and 'PNEUMATICS' and 'ELECTRICS' on Right Side Pattern Centered (Stickers) - Set 60051 : Part 92088pb02 | BrickLink Train Base 6 x 24 with White 'OIL' and 'WATER' on Left Side and 'PNEUMATICS' and 'ELECTRICS' on Right Side Pattern Centered (Stickers) - Set 60051 : Part 92088pb02 | BrickLink](https://img.bricklink.com/ItemImage/PL/92088pb02.png)
Train Base 6 x 24 with White 'OIL' and 'WATER' on Left Side and 'PNEUMATICS' and 'ELECTRICS' on Right Side Pattern Centered (Stickers) - Set 60051 : Part 92088pb02 | BrickLink
![1 x 4560 Lego Construction Plate 6x34 Railway Wagon Train Base 34 x 6 Feet for System Train Set 4561 2972: Amazon.de: Toys 1 x 4560 Lego Construction Plate 6x34 Railway Wagon Train Base 34 x 6 Feet for System Train Set 4561 2972: Amazon.de: Toys](https://m.media-amazon.com/images/I/61BYyCOJlJL._AC_UF1000,1000_QL80_.jpg)