Added some quick and dirty scans, should be more coming. These have also been made available via Archive.org.
Books:
28 Uses for Junction Transistors
Crystal Diode Circuit Kinks
Electronic Shortcuts for Hobbyists
How To Make A Transistorized Portable Radio
Industrial Uses for Germanium Crystals
Transistor Circuit Handbook for The Hobbyist
Sylvania's Pocketbook of Service Dealer Aids
Misc:
Sylvania Controlog 1976-12
Sylvania Distribution and Construction Products Catalog 78-79
Sylvania Distribution and Construction Products Price List (1978-06)
Sylvania ECG Semiconductors IC Replacement Guide (ECG 212E-1)
Sylvania ECG Semiconductors Industrial MRO Replacement Guide and Catalog (ECG MRO-1)
Sylvania ECG Semiconductors Replacement Guide Supplement (ECG-212D)
Sylvania ECG Semiconductors Replacement Guide Supplement (ECG-212D-3)
Sylvania Electrical Equipment Group Engineered Products Digest 1976-02
Sylvania Entertainment Semi-Conductor Products User Price Schedule (1962-05-01)
Sylvania Lamps for Commercial Uses (Nilco Lamp Works, Inc.)
Sylvania Semiconductor Catalog (1964-01)
Characteristics of Sylvania Receiving Tubes Form 211 4-57
Test Equipment for the Professional by Sylvania Tag (05-86062-1)