Shelf wear.
Modelling in Gauge 1 Book 2: John van Riemsdijk's Contribution. GIMRA 2005.
Rail Express Modeller magazine No. 56 - Worcester Road diesel depot in Gauge 1
Nn3 Handbook for Modelling Narrow Gauge in N Scale, 2004, Ted Brandon, USA
Modelling Narrow Gauge Railways in Small Scales Chris Ford
MODELLING NARROW GAUGE RAILWAYS IN VARIOUS SCALES BOOK *HARDBACK*
