Cleveland Welding Company Serial Numbers

Serial number tables listed in section 2,3, and 5. The attached tables list the serial number assigned to the first welding machine or first motor manufactured for that corresponding year. Because monthly production is uniform, by pro-rating, these lists can be used to determine the approximate month of manufacture of a unit. Cleveland Welding Company Serial Numbers. 4/23/2018 / Comments off. An article that was recently published on the Massachusetts Institute The Process Synthesis Model presented here is a methodology that Significant workforce-related hurdles remain in place for CPI companies, but Optimization, advanced process control and performance monitoring. Most Hawthorne bicycles were manufactured by the Cleveland Welding Company or H.P. Snyder (makers of Rollfast bicycles). While Montgomery Ward did not actually manufacture the bicycles that they sold, they did commission some unique designs that were exclusive to their stores. One of t he most desirable of these is the 1936-1939 Hawthorne ZEP.

CWC started producing bikes in September of 1935. The serial number location of CWC bicycles from 1935-1956 is located underneath the bottom bracket. The early bikes (1935-36) could have used a serial starting with XX, Z , or A. The very early bikes starting with XX or Z appear rather crude (Fig 1). Beginning with the 'A' serial numbers the font is uniform and distinctive. This style of font is usually a good indicator fo a CWC built bike (Fig 2.). The serial numbers repeat during the prewar period so the frame style and components must be used to date the bike.

Note–Although the Delivery Cycles are listed as 1940-41 models all known examples have a serial number starting with 'D'

The serial number on early postwar bikes (1946-mid 1947) is the same style as the prewar bikes so frame characteristics must be used in conjunction with the serial number to distinguish between a pre and early post war bike. The biggest ‘tell' between a prewar and post war bike is a lack of drop stand ‘ears' on postwar frames* (Figs 3, 3-1). Later postwar bikes also have a ridge on seat post clamp (Figs 4, 4-1), and a stamped, curved upper rear fender brace vice a straight, tubular fender brace on prewar bikes (and early post war bikes) (Figs 5, 5-1). Early postwar from roughly '46-47 can be confusing as the drop stand ears are normally the only indicator the bike is postwar.

*Note–The '40-1 'All American' prewar model did not have drop stand ‘ears' but other frame indicators will identify this frame as prewar.

Beginning in August 1947 the serial will have a large 'C' with a small 'w' inside it after the serial number. This style of serial number runs until about July of 1949 (Fig 6).

Starting about August 1949 CWC again changed the serial style and after the serial number is an 'A' before the big 'C' with little 'w' (Fig 7). This configuration was used until the end of 1951.

Note: CWC was purchased by AMF in April 1951

Starting in 1952 through 1956 the serial was followed by the last two numbers of the year with the big 'C' with the small 'w' inside (Fig 9). This makes these bikes very easy to date. Also during 1956 production was moved to Little Rock, Arkansas

Serial number chart compiled from various sources.

*Note–The '40-1 'All American' prewar model did not have drop stand ‘ears' but other frame indicators will identify this frame as prewar.

Beginning in August 1947 the serial will have a large 'C' with a small 'w' inside it after the serial number. This style of serial number runs until about July of 1949 (Fig 6).

Starting about August 1949 CWC again changed the serial style and after the serial number is an 'A' before the big 'C' with little 'w' (Fig 7). This configuration was used until the end of 1951.

Note: CWC was purchased by AMF in April 1951

Starting in 1952 through 1956 the serial was followed by the last two numbers of the year with the big 'C' with the small 'w' inside (Fig 9). This makes these bikes very easy to date. Also during 1956 production was moved to Little Rock, Arkansas

Serial number chart compiled from various sources.

Cleveland Welding Company Serial Numbers Diagram

* Due to inconsistencies between sources the change in 1947 to the new numbering system is approximate From Aug 1947 through the end of 1951.