Template:Grf

From GRFSpecs

Template indicating the supported GRF version.

Version 2 {{grf|2}} GRFv2
Version 6 {{grf|6}} GRFv6
Version 7 {{grf|7}} GRFv7

Things valid in all GRF versions don't need any special indication.

See also Template:GrfFrom, Template:GrfEq and Template:GrfTill.