The Blue Streak Model 29 & 30 article is spread over two pages:
Page 1, Page 2,
The material on this page is taken from a brochure published in circa 1960 by the Mergenthaler Linotype Company. The brochure showcased the company's latest machines and innovations, including the Linofilm System.
The whole document is available for download, in PDF format, from the Metal Type Library.

TO the basic Model 29 the Blue Streak Model 30 adds the complete size range and extra capacity of two or four auxiliary magazines. These allow mixing special characters or display faces through normal 36- and condensed 60-point.
MODEL 29 FEATURES:
Swinging keyboard makes maintenance quick and easy.
Electromatic safety system provides automatic matrix and machine protection.
Famous one-turn shift is fastest, simplest, safest.
Distributor safety prevents damage to matrices, channel entrance partitions or distributor bar by locking the distributor screws if there is interference with smooth distribution.
Two stationary distributor boxes provide fastest possible distribution.
Feather-touch mixing control instantly transfers delivery of matrices from one magazine to the other when mixing matrices from a pair of magazines.
The Model 29 Blue Streak sets difficult mixed composition quickly and economically.
Go to Page 1, Page 2.A small selection of Letterpress Ebay listings appear below. A much bigger selection appears here. Linotype-related Ebay listings are here.