Works (mostly Irish railway 'scratch aid' brass kits) and Alphagraphix (mostly card Irish rolling stock kits). Some model kits are not available new due to production having ceased but can be found on the preowned market including the Backwoods models of Irish narrow gauge locomotives and rolling stock. Further information on 00n3 suppliers is given on the 00n3 entry. See also Model Railway Scales Sn3½ – scale for modelling 3'6" (1067mm) gauge railways. List of narrow-gauge model railway scales Rail transport modelling scales Three foot gauge railways External links Lex Parker's On3 model of the D&RGW Another On3 layout - the Paisley Mill & Timber Co. Slim Gauge Guild HOn3 and Sn3 layouts Nn3 Home Page Chester Model Railway Club Irish prototype layouts in OOn3 15mm to the foot scale garden railway based on an Irish 3' gauge railway Modelling 3' Gauge Railroads Model railroad scales Narrow gauge railway modelling