Boxcar loads 19402-1970s "Hop Top"?

[nyandw]

Anyone know what "Hop Top" is?

BOXCAR LOADS 1940-1970's Commodities carried in boxcars in the 1940-1970 period - by Sam A. McCall

1. Automobiles - shipped in Auto XAR boxcars
2. Automobiles - shipped LCL
3. Bags - Commodities in - Flour, Rice, Beans etc etc
4. Barrels, Drums or Kegs
5. Batteries - Storage
6. Brick and Hollow Building Tile
7. Brick - Hop Top
8. Butter in Tubs in Refrigerator Cars
9. Cable on Reels and Wire Commodities
10. Car Doors
11. Car Wheels - Loose
12. Cylinders - Empty, With or Without Caps
13. Fiberboard Containers
14. Freight
15. Furniture - Car Load
16. Furniture - LCL
17. Grain and Grain Products in Fiberboard Containers or Sacks
18. Ink and Like Commodities in Six-Gallon Pails
19. Livestock
20. Lumber
21. Machinery
22. Marble in Slabs
23. Sheet Steel, Tin Plate and other steel products
24. Mixed Loads of Commodities (LCL - less than carload) in wooden crates, cardboard boxes, etc.
25. Paper and Similar Commodities on Skids
26. Plasterboard, Wallboard etc in Solid Loads or Bagged Commodities as Mixed Loads
27. Projectiles, Bombs and Cartridge Cases (Empty)
28. Radiators-Cast Iron
29. Refrigerators-Mechanical
30. Roofing Materials-Prepared
31. Soda Ash
32. Stones-Pulp Grinder
33. Stoves and Ranges
34. Rolled and Plate Glass
35. Untreated Cross Ties
36. Bulk Grain
37. Pig Lead, Copper Bars and Similar
38. Unsaturated Roofing Felt and Pulpboard Paper
39. Newsprint
40. Vitrified Clay Sewer Pipe

[jhdeasy]

Anyone know what "Hop Top" is?

BOXCAR LOADS 1940-1970's Commodities carried in boxcars in the 1940-1970 period - by Sam A. McCall

7. Brick - Hop Top

I believe "hop top" is not the name of a shipper/receiver, nor does it refer to a specific type of boxcar, so I think it must be a specific type of masonry product, or a type of packaging used for shipment of a masonry product. I did some internet searching for combinations of these terms, but I came up with nothing. Maybe a bricklayer or mason can answer this question.

[nyandw]

Anyone know what "Hop Top" is?

BOXCAR LOADS 1940-1970's Commodities carried in boxcars in the 1940-1970 period - by Sam A. McCall

7. Brick - Hop Top

I believe "hop top" is not the name of a shipper/receiver, nor does it refer to a specific type of boxcar, so I think it must be a specific type of masonry product, or a type of packaging used for shipment of a masonry product. I did some internet searching for combinations of these terms, but I came up with nothing. Maybe a bricklayer or mason can answer this question.

Yes, Jack "Hop Top" was the load and my search of masonry sites, brick laying styles, products, also ended zero... Hmm...

[ConstanceR46]

This is a hell of a reach, the reachiest of all; can it be a slang term for boxcars with roof hatches?

[CarterB]

Could be a misspelling....there is "A "hot top" is a brick made of fireclay with a hole through it, the size of the brick and the hole depending upon the size of the ingot." used in smelting

[ConstanceR46]

...perhaps this could be related to the Phelps-Dodge Copper Refinery in Maspeth

[nyandw]

I think you guys are on to something, anyone? Thanks, BTW!