This is the 11667th most frequent Polish word.
kolejarskie
Related to railway workers or railways.
Here, 'kolejarskie' modifies 'narzędzia' (tools) and refers to tools used by railway workers.
Podczas wycieczki muzeum pokazało nam stare kolejarskie narzędzia.
During the trip, the museum showed us old railway worker tools.
The word 'kolejarskie' is used as an adjective describing 'mundury' (uniforms), indicating that the uniforms are related to railway workers.
Mój dziadek nosił przed wojną kolejarskie mundury.
My grandfather wore railway uniforms before the war.
In this context, 'kolejarskie' describes 'zabawy' (games) and signifies that the games are themed around railways or railway workers.