Sequined and beaded wool sweaters and cardigans were extremely popular in the 1950's and 1960's. They are often wardrobe favorites, coming in fun colors and styles. Many times, the general age and nature of wool has led to dust absorption and storage odors, which must be removed. These types of tops are relatively easy to clean with some care.
First, create a luke-warm soapy bath with a bit of Woolite -- a few drops should do. Quickly stir the water until some bubbles form.
Soak the garment in the Woolite dishpan or tub bath for 30 minutes to an hour depending on soil level. Gently agitate occasionally. If water turns dark, you may want to repeat the soap bath to remove more dirt.
Once Woolite bath water is clear, empty pan and replace with fill with clean water stream until garment is completely rinsed out of any soap.
When ready to remove from water, DO NOT WRING OR HANG (this can distort the shape). Place flat sweater on a thick towel or two. Fold over and gently pat water. Loosely roll towel to absorb excess moisture.
Now that the sweater is not so heavy, it can air dry, flat without dripping. I recommend a netted drying rack. Hanging the garment to dry may cause sagging of the fabric or distortion due to weight of these types of clothes. Heavy beaded sweaters and dresses should be stored folded in a cedar lined chest or drawer, when dry.