M.R.S.G. trade mark product  "ProtoFour"

Looks to have been suplied by Studiolith Ltd, Little Milton. Oxford. - 14 page Product Price list and information detail included.

7 pkgs - various sizes and loose - sleepers

5 pkgs - RS4 - 19/34A Scale 3-link couplingssets of 10

1 pkg - DW4 - 106/d Crank pin set for 6 coupled loco

1 pkg - GB 601/1 - ? mixed axles support components

1 pkgs - Hooks, & misc

8 pkgs - PW4-50 Turnout Operating unit Type A

1 container - Brass track rivets

1 pkg and bundle  Turnout units un numbered but similar to PW4's above - 

2 pkgs - LM4-604

3 pkgs - LM4-605/3

1 pkg - GB 659

1 pkg - 714-A3

3 pkgs - G4-53 Switch blade clearance gauages

1 pkg - Motor of some kind..

4 sheets PSM assembly Jig information

Various P4 - Templates