One Pair - GE Halogen Sealed Beam Spotlights
PN: 4509, 13V, 100W LANDING / TAXI LIGHTS (2 EA)
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Attached paperwork indicates that these lamps were received by Clay Aviation at Boeing Field in Seattle in Oct  of 2018.   The boxes were sealed until now (Aug 2024), and have been opened to verify contents.
Lettering on rear of bulb indicates Mfg Date of 02/2017.  Made in USA.
Sourced at a recent "Hanger Estate Sale" in the Pacific Northwest.

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USPS shipping often "Ground Advantage" (or "Media Mail" if authorized) is used in order to lower your overall cost.   I typically ship within one or two days of receiving your payment; however, total transit time may vary greatly.   Most of the time, the US Postal System is reasonably fast, sometimes amazingly so. 
That said, at times it can mysteriously take 8 to 10 days after I deliver your package to my Post Office.

If this happens, please understand that it is out of my control.  In many cases (and depending on the size of your item), I will include a Priority Mail link in the shipping options to which you may wish to upgrade if you would like to receive your purchase quicker than than standard service.  Contact me if you would like to explore other shipping options.

Again...  please closely examine all photos, and request more photos if necessary.  
The item you see in the listing photos is the item you will receive.   
Your satisfaction in this purchase is my number one goal.  
Please ask any questions you may have prior to purchasing.

Got a problem?   I try to make my listing descriptions accurate and use detailed photos.
However, if you believe I have make a mistake in my description, or there are any other issues, 
just contact me and I will do my best to make it right.