Applies to establishments engaged in making metal, plastic, or wood patterns or models. Patterns or models produced may include industrial, aircraft, foundry, architectural scale and mechanical models. Use of this classification is limited to the fabrication of individual or prototype pieces. Work contemplated is limited to fabricating the pattern or model using woodworking and metal cutting tools, sanding and filling voids with fillers (wood or plastic); and extensive hand finishing of all these mediums when performed by employees of an employer subject to this classification.

This classification excludes pattern or model making by other manufacturers unless specifically allowed for in the manufacturing classification, and establishments engaged in the manufacture of plastic or wood model kits (assembly of a scale model of a car, boat, or plane) which is to be reported separately in the applicable classification.

Applies to establishments engaged in the manufacture of wood musical instruments including, but not limited to, pianos, organs, violins, harps, and guitars. Work contemplated by this classification includes various phases of woodworking techniques required to manufacture cases, sounding boards, pedals and action boards, metal working techniques required to produce components such as pipes, frames, switches, magnets, wind reservoirs and blower systems, and incidental tanning of skins for drums and banjos when done by employees of an employer having operations subject to this classification. This classification applies whether the company is producing all component parts or assembling a wooden musical instrument from purchased parts. This classification includes the reconditioning and subsequent sale of reconditioned pianos, organs, and wooden musical instruments.

This classification excludes the manufacture of metal musical instruments which is to be reported separately in classification 3404; tuning or repair of pianos which is to be reported separately in classification 4107; and the sale of new piano and organs or wooden musical instruments which is to be reported separately in the applicable store classification.