diff --git a/mps/qa/function/69.c b/mps/qa/function/69.c
new file mode 100644
index 00000000000..78a304b15cc
--- /dev/null
+++ b/mps/qa/function/69.c
@@ -0,0 +1,117 @@
+/* TEST_HEADER
+ summary = request.dylan.170563 (colour invariant and finalization)
+ language = c
+ link = testlib.o rankfmt.o
+END_HEADER
+*/
+
+#include "testlib.h"
+#include "mpscamc.h"
+#include "rankfmt.h"
+
+void *stackpointer;
+
+mps_space_t space;
+
+
+static void test(void) {
+ mps_pool_t pool;
+ mps_thr_t thread;
+ mps_root_t root;
+
+ mps_fmt_t format;
+ mps_addr_t ref;
+ mps_message_t message;
+ mps_ap_t ap;
+
+ mycell *a, *b;
+ tag tag;
+
+ long int j;
+ long int i;
+
+ cdie(mps_space_create(&space), "create space");
+
+ cdie(mps_thread_reg(&thread, space), "register thread");
+
+ cdie(
+  mps_root_create_reg(&root, space, MPS_RANK_AMBIG, 0, thread,
+   mps_stack_scan_ambig, stackpointer, 0),
+  "create root");
+
+ cdie(
+  mps_fmt_create_A(&format, space, &fmtA),
+  "create format");
+
+ cdie(
+  mps_pool_create(&pool, space, mps_class_amc(), format),
+  "create pool");
+
+ cdie(
+  mps_ap_create(&ap, pool, MPS_RANK_EXACT),
+  "create ap");
+
+ mps_message_type_enable(space, mps_message_type_finalization());
+
+ b = allocone(ap, 400, 1);
+
+ for (j=0; j<1000; j++) {
+  a = allocone(ap, 400, 1);
+  setref(a, 0, b);
+  b = a;
+ }
+
+ a = allocone(ap, 2, 1);
+ mps_finalize(space, &a);
+ tag = a->tag;
+
+ a = allocone(ap, 4000, 1);
+ mps_arena_collect(space);
+
+ if (mps_message_get(&message, space, MPS_MESSAGE_TYPE_FINALIZATION)) {
+ } else {
+  error("No message on queue!");
+ }
+
+ for (j=0; j<50; j++) {
+  comment("%d of 50", j);
+  a = allocdumb(ap, 1024*1024*10, 1);
+  mps_message_finalization_ref(&ref, space, message);
+  mps_arena_park(space);
+  a = ref;
+  comment("                   %p", a);
+  asserts(a->tag == tag, "Bad reference!");
+  a = NULL;
+  ref = NULL;
+  mps_arena_release(space);
+ }
+
+ mps_message_discard(space, message);
+
+ mps_root_destroy(root);
+ comment("Destroyed root.");
+
+ mps_ap_destroy(ap);
+ comment("Destroyed ap.");
+
+ mps_pool_destroy(pool);
+ comment("Destroyed pool.");
+
+ mps_fmt_destroy(format);
+ comment("Destroyed format.");
+
+ mps_thread_dereg(thread);
+ comment("Deregistered thread.");
+
+ mps_space_destroy(space);
+ comment("Destroyed space.");
+
+}
+
+int main(void) {
+ void *m;
+ stackpointer=&m; /* hack to get stack pointer */
+
+ easy_tramp(test);
+ return 0;
+}