vintage or antique cast metal bracket or mounting piece.

Possible Uses:

• Machinery Part: It could be a component from a larger piece of machinery, designed to hold or support other parts.
• Architectural Bracket: It might have been used in construction, perhaps as a support for a railing, fence, or similar structure.
• Tool or Equipment Part: Given the design, it could also be part of a specialized tool or equipment, especially considering the sturdy build.

Features:

• Material: The item appears to be made of cast iron or another durable metal, which is typical of older, heavy-duty parts.
• Design: The open sections suggest it might have been designed to reduce weight while maintaining strength, typical of brackets or mounts.
• Symbols: The star and arrow could indicate military origin or be a manufacturer’s mark.

Historical Significance:

If this item is indeed military or industrial, it could have some historical value, especially if it can be linked to a specific period or manufacturer. Items like this are often of interest to collectors of industrial or military memorabilia.

Conclusion:

This is likely a unique, vintage piece that served a specific, possibly important function in its time. Its exact use would require further research or expert consultation, particularly with specialists in vintage machinery, military equipment, or industrial history.